DTC P0125: Insufficient Coolant Temperature For Closed Loop Fuel Control: Condition

DTC is set when PCM determines Engine Coolant Temperature (ECT) sensor reading has not increased after engine is started cold to expected temperature within specified period of time. This is a continuous monitor. MIL is illuminated when PCM detects malfunction during 2 consecutive drive cycles. Possible causes are:

• Engine coolant temperature (ECT) sensor malfunction.
• PCM malfunction.
• Poor connection of harness connectors.